WebListBox Index was out of range error. Please help.

sd007 — Thu, 29 Sep 2011 11:31:00 GMT

<ISWebEssentials:WebListBoxID="WebListBox1"runat="server"Height="600px"Width="210px" DefaultStyleMode="Minimalist"EnableKeyboardSupport="true"DataSourceID="SqlDataSource1" TextFieldDataMember="Description"ValueFieldDataMember="Description" AutoPostBack="true"OnSelectedItemChanged="WebListBox1_SelectedItemChanged" SelectedIndex="0"AllowDefaultStyleMerging="false"> <LayoutSettingsItemHeight="30"ScrollMode="Scroller"DisplayMode="Text" ItemAlignment="Center"DisplayActiveItemIndicator="true"/> <Items> <ISWebEssentials:WebListBoxItemName="Description"/> </Items>

protectedvoidWebListBox1_SelectedItemChanged(objectsender, WebListBoxSelectedItemChangedEventArgse)

{

int index = e.SelectedIndex; WebListBoxItem item = WebListBox1.Items[index] as WebListBoxItem;

I am getting Index out of range error when it gets to WebListBoxItem item... line.

I should have my collection count to 4 but it only shows 0.

Index was out of range. Must be non-negative and less than the size of the collection.
Parameter name: index

WebListBox cant detect Selected item is this a bug?

neil.turner@ntd.co.uk — Mon, 06 Jun 2011 06:57:41 GMT

I'm trying to get the selected item of a WebListBox on post back so i can add one item in a weblistbox to another WebListBox but the selected item isn't being detected selected when the button is clicked

Code below

<td>

<ISWebEssentials:WebListBox ID="WebListBox1" runat="server" Height="160px"

Width="250px" >

<Items>

<ISWebEssentials:WebListBoxItem Name="WebListBoxItem0" Text="1" />

<ISWebEssentials:WebListBoxItem Name="WebListBoxItem1" Text="2" />

<ISWebEssentials:WebListBoxItem Name="WebListBoxItem2" Text="3" />

<ISWebEssentials:WebListBoxItem Name="WebListBoxItem3" Text="4" ToolTip="4" />

</Items>

</ItemStyle>

</ISWebEssentials:WebListBox></td>

<asp:Button ID="Button1" runat="server" Text="Add" ToolTip="Add item" onclick="btnAddItem_Click" /><br /><br />

</td>

<td>

<ISWebEssentials:WebListBox ID="WebListBox2" runat="server" Height="160px" Width="250px">

<Items>

<ISWebEssentials:WebListBoxItem Name="WebListBoxItem0" Text="a" />

</Items>

</ISWebEssentials:WebListBox></td>

</tr>

</table>

Code behind

protected void btnAddItem_Click(object sender, EventArgs e)

{

foreach (WebListBoxItem wli in WebListBox1.Items)

{

if (wli.Selected)

{

WebListBox2.Items.Add(wli);

}

Intersoft Community - weblistbox

WebListBox Index was out of range error. Please help.

WebListBox cant detect Selected item is this a bug?